Hello Gardeners, I’m Amanda McNulty with Clemson Extension and Making It Grow . Late March and April are good times to fertilize trees and shrubs but not your lawn. Our warm-season turf grasses, centipede grass, St. Augustine, Zoysia and Bermuda are semi-tropical in origin. Although they’re starting to turn green, they aren’t fully revved up until Mid-May. That’s when your lawn can make the best us of the fertilizer you apply and you’ll reduce your chances of having the soluble nitrogen and